Universal AC/DC Adapter - AC Input:100-240V 50/60Hz, DC Output:3V/ 4.5V/ 5V/ 6V/ 7.5V/ 9V/ 12V 2A. Advanced secure technique, with full protection of over Voltages/ over Current/ short Circuits/ over Temperature.
Upgraded Version Power Supply - Certified by RoHS, CE and FCC, Made of Compact Material. Newly designed adapter plugs to make this adapter Plugged in More Easily, adding a magnet ring and LED terminal connector. There is ALSO a Micro USB Plug so this item can also function as an adaptor to turn any USB cable into a charger, such as usb charging camera.
All-in-one Adapter - This 30W replacement ac adaptor comes with 8 interchangeable tips, which makes it fits 95% of AC/DC home appliances, Such as 3V to 12V Household Electronics, Tablet PC, Scales, Routers, Speakers, LED Strip Lights, CCTV camera system, USB Charging Camera, and so on.（NOT compatible with radio.)
Multifunctional Power Adaptor - Variable voltage is easy to select, you can converts to different Voltage with ease using the provided key. 5.5mm*2.1mm DC power cable connector Plug, easy to connect and practical to use. Supporting DC 12V-2A or 12V-1.5A appliances.(Note: DC Plug Polarity: inner Positive(+), outer Negative(-), Polarity is Not reversible.)
Exactly What You Are Looking for - Reasonably priced, versatile adjustable charger, different sizes of output and different levels of voltage. Safe to operate, Handy to set up at the correct voltage and Easy to attach the adapter plugs. Any issue for the product, please keep free to before returning.

Product Description
SoulBay 30W Universal AC/DC Adapter Switching Power Supply Replacement Cord
So, let us see what's the improvement points on this Upgraded Version 30W AC Adapter!
FULL PROTECTION of over Voltages/ over Current/ short Circuits/ over Temperature.
Maximum Current of up to 2A Supporting DC 12V-2A or 12V-1.5A/1A appliances.
No batteries needed, This universal adapter Replaces a box full of batteries.
Save your space and the one adapter can replace a lot adapters!
Premium Quality Cord, cable core made of copper, 5.5*2.1 mm turning fork attached on the cord + magnet ring to reduce the noise disturbance.
More Selections. This SoulBay adapter includes 8 DC tips which are compatible with most polular AC/DC products, such as pedals, effects, wireless receivers, printers, game consoles, Security Product, Routers, Digital Product, printers, LED Strip Lights, small electronic gizmos, replacing charger cords, rowing machine, GPS, Camera, External Hard Drive, Speakers, bike, Arduino UNO R3 REV 3/ Mega 2560 R3/ Elegoo UNO R3/ IEIK UNO R3 project, and More 3V to 12V Small Home Electronics.
About SoulBay Direct :

Always focus on Product Quality, Item Package!
30W power supply replacement adapter
Specification:

AC Input:100-240V 0.25A 50/60Hz, DC Output:3V/4.5V/5V/6V/7.5V/9V/12V
Efficiency: >80%(TYP)
Package Weight: 205 gram ( 7.23 oz)
Package Dimension: 12x7.5x5.6 cm/ 4.72x2.95x2.2 inch
Cord Length: 150cm( 5 feet/59 inch)
NOTE: If you going to use this adapter for guitar pedals, you'll need to order the separate Reverse Polarity Converter because most music devices require the opposite polarity.

8 Tips provided, offers you more convenience and more choices.
Instructions:

Connect the correct adapter tip and make sure that it's firmly attached to the dc input port of your device..
Set the right DC output voltage. There are 7 options for you, DC 3V/4.5V/5V/6V/7.5V/9V/12V.
Connect the adapter to the electrical socket and now you are ready to power up your device!
Friendly Reminder:

Not compatible with laptop or other over 2A or over 30W high power equipments.
Find The Suitable Polarity Adapter, This one is Postive Polarity: Inner Positive(+), Outer Negative(-)
Package Included:
1x 30W universal power adapter
8 x DC tips(little key included)
For the voltage selector, you can adjust it using the provided key!
Eight Adapter Tips Spec.:
5.5*2.5mm
5.5*2.1mm
4.0*1.7mm
3.5*1.35mm
3.0*1.1mm
2.5*0.7mm
Micro USB-B plug
LED terminal connector.
Mirco USB Plug is Included
There are also a 5.0V 2.1A Input and micro USB plug included, so this 30W AC Adapter is Perfect for Charging speakers, camera and other Devices.
Note: AC Adapter is not equal to a Battery Charger; Please turn off Your battery devices when it is charged and Don't charge it for more than the specific charged time. Please check carefully for the votage carefully. Thank you.
AC Input: 100-240V 50/60Hz.
DC Output: 3V/ 4.5V/ 5V/ 6V/ 7.5V/ 9V/ 12V selectable.
Current Load: 2000mA 2Amps max.
Polarity: Center Positive.
Caution: ∗ Wrong polarity may do damage to your device, please check the polarity symbol near the power port carefully.